Bug 1552916 (CVE-2018-7641)

Summary:	CVE-2018-7641 CImg: heap-based buffer over-read in load_bmp in CImg.h via crafted bmp image (32 bits colors)
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	berrange, cheese, i, laurent.rineau__fedora
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:16:58 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1552926, 1625321, 1625324
Bug Blocks:

Description Laura Pardo 2018-03-07 22:52:12 UTC

An issue was discovered in CImg v.220. A heap-based buffer over-read in load_bmp in CImg.h occurs when loading a crafted bmp image, a different vulnerability than CVE-2018-7588. This is in a "32 bits colors" case, aka case 32.


References:
https://github.com/dtschump/CImg/issues/185

Upstream Patch:
https://github.com/dtschump/CImg/commit/10af1e8c1ad2a58a0a3342a856bae63e8f257abb

Comment 1 Laura Pardo 2018-03-07 22:54:37 UTC

Created CImg tracking bugs for this issue:

Affects: fedora-all [bug 1552926]

Comment 2 Scott Gayou 2018-09-04 16:18:43 UTC

Created CImg tracking bugs for this issue:

Affects: fedora-27 [bug 1625321]

Comment 3 Scott Gayou 2018-09-04 16:21:22 UTC

Second tracker for CImg was a mistake. Closed. Meant to open that against gmic.

Comment 5 Scott Gayou 2018-09-04 16:24:46 UTC

Created gmic tracking bugs for this issue:

Affects: fedora-all [bug 1625324]

Comment 6 Product Security DevOps Team 2019-06-10 10:16:58 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.